The official wording of the NHS Choices website for the program is as follows
"Taking up running can seem like a scary prospect, especially if you feel out of shape or unfit.
But, did you know that regular running can help reduce the risk of chronic illnesses such as heart disease, type 2 diabetes and stroke, boost your mood and keep your weight under control?
The Couch to 5K plan is designed to get you off the couch and gradually work you up to running 5K or for half an hour, in just nine weeks."
Graduation occurs when you have completed week 9 run 3.
Graduation occurs when you can run for 30 min or 5 km for three runs.
Please do not put off asking your graduation badge because you can run for 30 min but have not hit the 5km mark.
You are a graduate.